#!/usr/bin/ruby -w
# -*- coding: UTF-8 -*-

=begin 
@author = sirius
@time = 2017.11.12
=end

months = Hash.new( "month" )
puts "#{months[0]}"
puts "#{months[72]}"

H = Hash["a" => 100, "b" => 200]
puts "#{H['a']}"
puts "#{H['b']}"

$, = ", "
months = Hash.new( "month" )
 
months = {"1" => "January", "2" => "February"}
 
keys = months.keys
 
puts "#{keys}"
